MXPA06006004A - Refrigerator having dispenser - Google Patents

Abstract

The present invention relates to a refrigerator having a dispenser. In the present invention, the dispenser is provided in a concave portion of a door to be exposed toward a front surface of the door. A water tank is installed between a rear surface of the dispenser and a door liner defining a rear surface of the door. The water tank stores the water delivered from an external water supply source while the water in maintained at a relatively low temperature and then discharges the water to the outside through the dispenser. Furthermore, in the present invention, a nozzle, through which the water is discharged from the water tank, is directly connected to a drainpipe of the dispenser, so that users may always take out the water maintained at a constant temperature.

Description

REFRIGERATOR WITH DISPATCHER FIELD OF THE INVENTION The present invention relates to a refrigerator and, more particularly, to a refrigerator having a dispenser to allow water to be supplied from a water tank, which is connected to an external water supply source and is supplied with water , as well as for it to be downloaded abroad.

BACKGROUND OF THE INVENTION Figure 1 shows a refrigerator having a dispenser according to the prior art. Accordingly, a front surface of the main body of a refrigerator 1 in which freezing and cooling chambers are defined, is mounted with the doors 2 and 3 to selectively open and close the freezing and cooling chambers. The main body of refrigerator 1 is provided with a valve 4 for controlling the supply of water from an external water supply source (not shown). The valve 4 is connected to the first and second supply tubes 5 and 5 'and, subsequently, provides a dispenser 7 and an ice maker 8, the water supplied from the water supply source. In the middle of the first supply pipe 5, a water tank 6 is provided. The water tank 6 is installed in the cooling chamber. The water tank 6 stores the water and then supplies it to the dispenser 7. The dispenser 7 is generally provided in the door 2 for the freezing chamber, while a first supply pipe 5 passes through the main body of the refrigerator 1 and the inside the door 2, to then connect with the dispenser 7. However, the configuration of the prior art indicated above has the following problems. The water in the water tank 6 is kept basically at the same temperature as the inside of the cooling chamber and the water maintained in this way is supplied to the dispenser 7 through the first supply pipe 5. The first supply pipe 5 to supply the water to the dispenser 7 is configured to pass through the door 2 on the side of the freezing chamber. Subsequently, when it passes through the interior of the door 2, the first supply pipe 5 is arranged adjacent to the front surface of the door 2, which is essentially made of metal plate. As a reference, the temperature of the water discharged from the dispenser 7 depends on the temperature of the water in the water tank 6 which is based on the temperature of the cooling chamber. However, the first cup of water discharged through the dispenser 7 is generally that which has remained in the first supply tube 5. Therefore, if the dispenser 7 has not been used for a long time, the water in the dispenser is supplied. first supply pipe 5 positioned on the door 2 which is relatively under the influence of the external temperature of the refrigerator. Therefore, there is a problem because water with a relatively high temperature is supplied to the users through the dispenser 7. Furthermore, in the prior art, since the valve 4 is installed at a rear end of the refrigerator body 1 , a machine area or similar, there is a problem because the main body of refrigerator 1 must be moved for the maintenance of the valve 4. It is the same as a filter to filter impurities from the water.

BRIEF DESCRIPTION OF THE INVENTION Technical problem A purpose of the present invention is to provide a refrigerator that has a dispenser capable of maintaining the temperature of the water in a low temperature state, even when the dispenser has not been used for a long time. Another purpose of the present invention is to easily form a foam rubber layer when a door is assembled with a water tank for supplying water to a dispenser.

A further purpose of the present invention is to easily form an insulation layer in a door of a refrigerator, where the door is provided with a dispenser and a water tank. A further purpose of the present invention is to make it possible to accurately detect the temperature of the water in a water tank of a refrigerator, where the door is provided with a dispenser and a water tank. A further purpose of the present invention is to accurately install a water tank in a door. A further purpose of the present invention is to permanently install a water tank in an insulation layer formed in a door. A further additional purpose of the present invention is to prevent water in a water tank provided in a door from splashing through a nozzle when the door is opened and closed. A further purpose of the present invention is to facilitate the connection of a water tank and a drainage tube of a dispenser to each other. A further additional purpose of the present invention is to make it possible to always maintain the water in a tank of water at the appropriate temperature, as well as to maintain the predetermined or greater storage capacity of a refrigerator, when no water tank is installed in a door . A further additional purpose of the present invention is to install a water tank in a door, as well as a valve and the like to supply water to the dispenser. A further additional purpose of the present invention is to install a water tank in a door to allow maintenance and supply water to a dispenser. A further additional purpose of the present invention is to supply water to a dispenser using a pipe installed in a door as a tank, without manufacturing an additional water tank. A further purpose of the present invention is to make it possible to maximize an internal storage space provided with a dispatcher.

TECHNICAL SOLUTION In accordance with one aspect of the present invention to achieve its purposes, a refrigerator is provided which includes a main body formed with a storage space and a door formed with an insulation layer there, as well as mounted on the body main to selectively open and close the storage space. The refrigerator comprises: a dispenser including a dispenser cover installed in a concave portion of a front surface of the door and discharging water / ice to the outside; a water tank that is installed between a door liner that defines a rear surface of the door and the cover of the dispenser that must be separated by a predetermined gap from each of them, which stores the water coming from the source of water. external water supply to a predetermined temperature and subsequently provides the water to the dispenser, as well as a heater that is installed adjacent to the water tank and generates heat selectively. A rear surface of the dispenser cover may be in the form of a curved surface, while a front surface of the water tank may be in the form of a curved surface corresponding to the back surface of the dispenser cover, thereby causing the surface The front of the water tank is separated by a predetermined interval from the back surface of the dispenser cover. The refrigerator may additionally comprise a temperature sensor which senses the temperature of the water stored in the water tank and which is provided on an external surface of the water tank. The front surface of the door may further comprise a deployment through which the temperature of the water in the water tank detected in the temperature sensor is displayed.

The temperature sensor may be seated in a sensor notch, which is formed concavely on the outer surface of the water tank. The sensor notch can be formed in a position facing the storage space when the water tank is installed inside the door. The water tank can be attached to a support rib, which extends and forms on a rear surface of the dispenser cover and, therefore, is fixed to the inside of the door. The water tank can be formed with a retaining rib in a position corresponding to the support rib of the dispenser cover, as well as fixing the interior of the door by holding the retaining rib to the support rib. The main tank body of the water tank can be formed with a through hole through which the foam liquid that forms the insulation layer flows. A plurality of through holes can be pierced through the thinner portions of the main body of the tank. The water tank may comprise a tank main body in which the water is stored, a neck formed integrally with the main tank body and having a relatively narrow sectional flow area, as well as a nozzle installed in the neck, injection molded and connected with a drainage tube of the dispenser, so that the main body of the tank and the neck are formed through blow molding with the nozzle inserted therein. A relatively narrow sectional flow area of the nozzle can be formed than that of the neck. The water tank can be folded and formed to conform to the back surface of the dispenser cover and at least one surface of the dispenser cover adjacent to that site, as well as being folded and formed so that a portion leaving the surface The back of the dispenser cover is separated by a predetermined interval of the dispenser cover. The water tank can be folded and formed so that the water tank is separated by a predetermined interval of the back surface and a lower surface of the dispenser cover, as well as installed inside the door. The heater can be installed on a rear surface of the dispenser cover. The heater can selectively apply heat to the water in the water tank, thereby maintaining the water at a predetermined temperature, while the heater can apply heat to a surface of the dispenser cover, thus preventing frosting. A valve chamber can be additionally accommodated by a chamber cover.

The water tank can be installed in the interior of the door corresponding to a rear portion of the dispenser and be housed by a cover that can be opened and closed and, therefore, that is not under the influence of cold air in the space of storage. The cover can be formed with a layer of roof insulation. In accordance with another aspect of the present invention, a refrigerator is provided which includes a main body formed with a storage space and a door formed with an insulation layer at that site, as well as mounted on the main body for opening and closing of Selectively way storage space. The refrigerator comprises: a dispenser including a dispenser cover installed in a concave portion of a front surface of the door and discharging water / ice to the outside; a water tank that is installed between a door liner that defines a rear surface of the door and the cover of the dispenser that must be separated by a predetermined gap from each of them, which stores the water coming from the source of water. external water supply to a predetermined temperature and subsequently supplies the water to the dispenser, as well as a filter that purifies the water supplied from the external water supply source and that supplies the water to the water tank. A support rib can be projected and formed on a rear surface of the dispenser cover, a retaining rib can be formed in the water tank in a position corresponding to the supporting rib, while the water tank can be fixed to the interior of the door which must be separated by a predetermined interval from the door covering by coupling the support rib and the retaining rib together. The main tank body of the water tank can be formed with a through hole through which the foam liquid flows. A plurality of through holes can be pierced through the thinner portions of the main body of the tank. The water tank may comprise a tank main body in which the water is stored, a neck formed integrally with the main tank body and having a relatively narrow sectional flow area, as well as a nozzle installed in the neck, injection molded and connected with a drainage tube of the dispenser, so that the main body of the tank and the neck are formed through blow molding with the nozzle inserted therein. A relatively narrow sectional flow area of the nozzle can be formed than that of the neck. The water tank can be folded and formed to conform to the back surface of the dispenser cover and at least one surface of the dispenser cover adjacent to that site, as well as being folded and formed so that a portion leaving the surface The back of the dispenser cover is separated by a predetermined interval of the dispenser cover. The water tank can be folded and formed so that the water tank is separated by a predetermined interval of the back surface and a lower surface of the dispenser cover, as well as installed inside the door. A valve chamber can be additionally formed in the insulation layer of the door to be opened in the storage space of the main body of the refrigerator, as well as including a valve for controlling the water supply from the external water supply source and a filter to purify the water. The valve chamber can be housed selectively by a chamber cover. The water tank can be installed inside the door corresponding to a rear portion of the dispenser, as well as being housed by a cover that can be opened and closed not meeting, therefore, under the influence of cold air in the storage space. The cover can be formed with a layer of roof insulation. According to a further aspect of the present invention, a refrigerator is provided, the main body of which is formed with a storage space and is mounted with a door for selectively opening and closing the storage space, the door being formed with a insulation layer on that site. The refrigerator comprises: a dispenser that includes a dispenser cover installed in a concave portion of a front surface of the door and that discharges water / ice to the outside; and a deposit that is installed in the insulation layer between a door covering defining a rear surface of the door and the cover of the dispenser, formed by arranging a tube repeatedly in a zigzag fashion, which stores the water coming from The source of external water supply at a predetermined temperature and provides the water to the dispenser. The reservoir can be formed by arranging the tube repeatedly in a zigzag fashion, wherein the tube is formed integrally with a supply tube connected to the external water supply source and where the tube is directly connected to a drain pipe to through which the water is discharged from the dispenser. The reservoir can be formed by arranging the tube repeatedly in a zigzag form, wherein the tube is formed separately from a supply tube connected to the external water supply source and where the tube is directly connected to a drainage tube. through which the water is discharged from the dispenser. The reservoir can be fixed to a support rib, which extends from and forms on a rear surface of the dispenser cover.

In accordance with a further aspect of the present invention, a refrigerator is provided which includes a main body formed with a storage space and a door formed with an insulation layer there, as well as mounted on the main body for opening and closing Selectively storage space. The refrigerator comprises: a dispenser including a dispenser cover installed in a concave portion of a front surface of the door and discharging water / ice to the outside; a water tank that is installed between a door liner that defines a rear surface of the door and the cover of the dispenser that must be separated by a predetermined gap from each of them, which stores the water coming from the source of water. external water supply at a predetermined temperature and subsequently provides the water to the dispenser, as well as a temperature sensor that is installed on one side of the water tank and detects the temperature of the water tank; and a heater that operates in accordance with the temperature in the water tank detected by the temperature sensor, so that the heater generates heat when the detected temperature is lower than a preset temperature and turns off when the detected temperature is greater than the temperature detected. pre-set temperature, thus maintaining the temperature of the water tank at a predetermined value. In accordance with a further aspect of the present invention, there is provided a method for manufacturing a door of a refrigerator having a dispenser. A storage space of a main body of the refrigerator is closed and opened by the door and an external appearance of the refrigerator is defined by an external door and a door covering. The dispenser is provided at the door, so that the dispenser is exposed to the external door. An insulation layer is installed between the outer door and the door liner, so that the door liner is separated by a predetermined interval of a water tank to supply the water to the dispenser. The method comprises the steps of: attaching a securing rib of the water tank to a support rib formed on a cover of the dispenser installed in the external door; apply foam liquid to a rear surface of the external door, while the water tank is fixed; and cover the back surface of the outer door, to which the foam liquid is applied, with the door covering and fill with the foam liquid between the door covering and the outer door. In accordance with a further aspect of the present invention, a refrigerator having a dispenser is provided. The refrigerator comprises: a main body of refrigerator that includes a storage space that is defined by internal and external covers with an insulation layer formed in the middle and that is divided into refrigeration and freezing chambers from side to side by means of a barrier with an insulation layer formed on that site; a water tank installed in the insulation layer of the barrier to store the water supplied from a water supply source; and a dispenser installed in the storage space corresponding to the front of the water tank to supply the water supplied from the water tank. In accordance with a further aspect of the present invention, a refrigerator having a dispenser is provided. The refrigerator comprises: a main body of refrigerator that includes a storage space that is defined by internal and external covers with an insulation layer formed in the middle; a water tank installed on a surface of the inner cover that defines an internal surface of a cooling chamber of the storage space, for storing the water supplied from a water supply source; and a dispenser installed in the storage space corresponding to the front of the water tank to supply the water supplied from the water tank.

Advantageous Effects According to the present invention, since the temperature of the water in a water tank can always be kept constant, there are advantages because it is possible to avoid freezing water and frosting on an external surface of a dispenser due to a difference in temperature. temperature, as well as water can be supplied at a constant temperature through the dispenser.

Furthermore, since the gaps between the water tank and a heater, as well as between a door liner and the water tank, are generally kept uniform, there is also the advantage that the water in the water tank is generally uniform in water. as regards temperature, thanks to a uniform thermal conduction. In addition, since the water tank is kept uniformly and constantly separated from the peripheral parts installed in the front and back of the water tank, it becomes possible to fix the fluidity of the foam liquid when the foam liquid is injected. Therefore, there is the advantage that an insulation layer is fixedly formed in the door. In the present invention, since a sensor groove is concavely formed on a surface of the water tank and a temperature sensor is mounted on the sensor groove, it is possible to more accurately measure the temperature in the tank of water. In the present invention, it is possible to accurately and fixedly install the water tank in the insulation layer inside the door. In accordance with the present invention, since the sectional flow area of a nozzle is specified to be relatively smaller than that of the main body of the tank or the like, despite the fact that the water tank is installed inside the tank. door, water does not splash outdoors through the nozzle when the door opens and closes.

In the present invention, since the nozzle is injection molded and additionally installed in the water tank, it is possible to easily connect the water tank and a drainage tube of the dispenser to each other. In the present invention, since the water tank is curved to conform to an external shape of a dispenser cover, it is possible to make a rear surface of the door not project excessively, despite the fact that the tank water is installed in the insulation layer on the door. In the present invention, since the water tank is installed together with a valve and a filter in the door, its maintenance can be carried out easily. Further, in the present invention, since a supply tube through which the water tank is connected with the valve and the filter, is installed inside the door, there are the advantages that the required tube is short and breaking is avoided due to an external force. In the present invention, there is the advantage that the maintenance of the water tank can be carried out, since a cover is installed on a rear surface of the door where the water tank is installed. In the present invention, since a reservoir having a predetermined capacity is formed in the door by folding a tube without manufacturing an additional water tank, it is possible to reduce manufacturing costs and prevent sediment from occurring in the reservoir. In the present invention, it is possible to locate the dispenser and the water tank in the refrigerator, to accurately maintain the water in the water tank below a constant temperature, by removing the water from the interior of the refrigerator and drinking, as well how to maximize the internal volume of a storage space.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a partial sectional view showing a refrigerator having a dispenser in accordance with a prior art. Figure 2 is a schematic longitudinal sectional view showing a main portion of a first embodiment of a refrigerator having a dispenser in accordance with the present invention. Figure 3 is a schematic cross-sectional view showing the main portion of the first embodiment in accordance with the present invention. Figure 4 is a plan view of a water tank of the first embodiment in accordance with the present invention.

Figure 5 is a block diagram illustrating the operation of a heater in the first embodiment in accordance with the present invention. Figure 6 is a schematic cross-sectional view showing a main portion of a second embodiment in accordance with the present invention. Figure 7 is a perspective view showing a water tank of the second embodiment in accordance with the present invention. Figure 8 is a schematic longitudinal sectional view showing a third embodiment in accordance with the present invention. Figure 9 is a schematic cross-sectional view showing the third embodiment in accordance with the present invention. Figure 10 is a perspective view showing a water tank of the third embodiment in accordance with the present invention. Figure 11 is a side view showing the water tank of the third embodiment in accordance with the present invention. Figure 12 is a perspective view showing a nozzle of the third embodiment in accordance with the present invention. Figure 13 is a schematic longitudinal sectional view showing a fourth embodiment in accordance with the present invention. Figure 14 is a schematic longitudinal sectional view showing a fifth embodiment in accordance with the present invention.

Figure 15 is a schematic cross-sectional view showing the fifth embodiment in accordance with the present invention. Figure 16 is a schematic longitudinal sectional view showing a sixth embodiment in accordance with the present invention. Figure 17 is a schematic longitudinal sectional view showing a seventh embodiment in accordance with the present invention. Figure 18 is a schematic longitudinal sectional view showing an eighth embodiment in accordance with the present invention.

PREFERRED MODALITY OF THE INVENTION Hereinafter, preferred embodiments of a refrigerator having a dispenser in accordance with the present invention will be described in detail, with reference to the accompanying drawings. As shown in Figures 2 to 3, a storage space 12 is formed in the main refrigerator body 10 and is selectively opened and closed by a door 14. An external appearance of the door 14 is defined by an external door. 15 and a door liner 16. The door liner 16 defines a rear surface of the door 14, while the external door 15 basically defines the remainder of the external appearance thereof. In order to isolate the heat transfer through the door 14, an insulation layer 18 is formed in a space between the outer door 15 and the door skin 16. A dispenser is installed so as to expose a front surface of the door 14. It is preferable that the door 14 in which the dispenser 20 is installed, is a freezing chamber door in a case where the refrigerator to which the present invention is applied is a side-by-side refrigerator. Detailed descriptions of the structure of the dispenser 20, through which the users of the refrigerator draw water or ice, and which does not constitute a feature of the present invention, will not be omitted. The dispenser 20 is provided with a dispenser cover 22. The dispenser cover 22 has the shape of a concave portion recessed inwardly of the outer door 15. In general, the dispenser cover 22 is in the form of a half cylinder. A water tank 30 is installed between the dispenser cover 22 and the door liner 16. The water tank 30 keeps the water stored from an external water supply source and subsequently supplies the water to the dispenser 20. The water tank 30 Water 30 is provided in the insulation layer 18. A front surface 30 'of the water tank 30 which faces a rear surface 22' of the dispenser cover 22, has the shape of a curved surface corresponding to the dispenser cover 22 that takes the form of a half cylinder. Therefore, a predetermined gap is formed between the dispenser cover 22 and the water tank 30. Of course, it is preferable that, if the rear surface 22 'of the dispenser cover 22 has the shape of a flat surface, the The front surface 30 'of the water tank 30 also has the shape of a flat surface and the predetermined gap is formed in the middle. The water tank 30, which is installed in the insulation layer 18 between the outer door 15 and the door covering 16, must be kept at a completely low temperature by means of the cold air in the storage space 12 and must not be frozen . In order to maintain the water in the water tank 30 at a constant temperature, the insulation layer 18 with a predetermined thickness, must be provided between the water tank 30 and the storage space 12. In the present invention, there is a predetermined gap between a flat portion of a rear surface of the water tank 30 and the door liner 16. Therefore, it is possible to obtain uniform thermal transfer between the storage space 12 and the water tank 30. A heater 40 is installed between the dispenser cover 22 and the water tank 30. Preferably, the heater 40 is installed on the rear surface 22 'of the dispenser cover 22. Since the heater 40 is installed on the rear surface 22' of the Dispatcher cover 22, it is also possible to maintain a uniform gap between the heater 40 and the front surface 30 'of the water tank 30. Therefore, the heat generated from the heater 40 was transferred to the The heater 40 can serve to prevent freezing of the water in the water tank 30 and, simultaneously, the formation of frost on an external surface of the dispenser cover 22 due to a temperature difference. Meanwhile, in order to measure the temperature of the water in the water tank 30, the water tank 30 is mounted with a temperature sensor 50. It is preferable that the temperature sensor 50 is provided on the rear surface of the water tank. water 30. The temperature sensor 50 is connected to a controller 52 which is a central processing unit of the refrigerator, so that the temperature detected by the temperature sensor 50 can be displayed in a display 54 through the controller 52. In general , the deployment 54 is installed on the front surface of the refrigerator door and, therefore, displays an operational status of the refrigerator for users. In addition, the controller 52 of the refrigerator is connected to an inlet portion 58, through which users control the operation of the refrigerator, in addition to the temperature sensor 50 and the deployment 54 described above. The input portion 58, which is generally installed adjacent to the deployment 54, is a portion through which users input signals to control the operational modes of the refrigerator and the like. The controller 52 is also connected to a heater driver 56 to control the heater 40 and, therefore, can operate the heater 40 by controlling the heater driver 56. In the following the operation of the first mode according to the invention will be described. present invention configured in such a way. In the present invention, the front surface 30 'of the water tank installed in the insulation layer 18 of the door 14, is separated by a predetermined interval of the rear surface 22' of the dispenser cover 22 and, simultaneously, the rear surface 22 'of the dispenser cover 22 and the front surface 30' of the water tank 30 correspond to each other in terms of shape; that is, the rear surface 22 'of the dispenser cover 22 is formed on a convexly curved surface, while the front surface 30' of the water tank 30 is formed on a concavely curved surface. In addition, the rear surface of the water tank 30 is formed on a flat surface corresponding to the door skin 16, the insulation layer 18 with a predetermined thickness is also provided between the door skin 16 and the rear surface of the water tank 30 Therefore, the water stored in the water tank 30 does not freeze and can be maintained at a constant temperature, even though the storage space 12 is a freezing chamber. This is the reason why the insulation layer 18 is provided between the door covering 16 and the water tank 30 and the heat can be provided from the heater 40. That is, if it is necessary to provide the heat to the water tank 30 based on the value detected in the temperature sensor 50, the controller 52 controls the heater driver 56, so that the heater 40 is operated. When the heater 40 operates and generates the heat, the heat is transferred to the tank of water 30 and prevents freezing. Meanwhile, if the temperature detected by the temperature sensor 50 is equal to or greater than a predetermined value, the temperature detected in the temperature sensor 50 is transferred to the controller 52 and, subsequently, the controller 52 controls the heater driver 56 for turn off the heater 40. Therefore, it is possible to always keep constant the temperature of the water in the water tank 30. Here, since the heater 40 and the water tank 30 are configured so that the gap between them is uniform, the heat generated from the heater 40 is uniformly transferred to the water tank 30 and, therefore, the overall temperature of the water in the water tank 30 can be kept uniform. The configuration that the insulation layer 18 having a generally uniform thickness is formed between the water tank 30 and the door skin 16 is also one of the reasons why the water temperature in the water tank 30 can stay generally uniform.

Additionally, since the water tank 30 is designed so as to be generally and uniformly separated from the door liner 16 and the dispenser cover 22, it is possible for the foam liquid to flow easily when the product is manufactured. 14. That is, while the water tank 30 is held in the door 14, the foam liquid is injected between the outer door 15 and the door covering 16, in order to form the insulation layer 18. In At this time, since the foam liquid must be filled in a general and uniform manner in the door 14, the fluidity of the foam liquid is important. If the determined gaps provided in the front and back of the water tank 30 as in the present invention, it is possible to completely fix the fluidity of the foam liquid. Therefore, in the present invention, the insulation layer 18 in the door 14 can be formed relatively fixed.

DETAILED DESCRIPTION OF THE INVENTION Subsequently, with respect to Figures 6 and 7, a second embodiment of the present invention will be described. In the embodiment herein, reference numbers increased by one cent are provided to the same elements as in the first previous embodiment and only the major portions will be described for convenience of description.

According to figures 6 and 7, a sensor notch 131 is formed on a surface of a water tank 130. The sensor notch 131 is concavely formed on the surface of the water tank 130. A temperature sensor 150 it sits in the sensor groove 131. Here, a portion, in which the sensor groove 131 is formed, faces the storage space 112 when the water tank 130 is installed in a door 114. Therefore, the configuration that the sensor notch 131 is formed in the position facing the storage space 112 and subsequently mounted with the temperature sensor 150, has the purpose of previously preventing the temperature sensor 150 from being under the influence of the outside . The configuration that the temperature sensor 150 is installed in the sensor notch 131 formed concavely on the surface of the water tank 130, has the purpose of accurately detecting the temperature of the water in the water tank 130. The temperature sensor 150 is connected to a controller which is a central processing unit of the refrigerator, so that the temperature detected in the temperature sensor 150 can be displayed in a display through the controller. Now, with respect to Figures 8 to 12, a third embodiment of the present invention will be described. According to said figures, a storage space 212 is formed in the main body of the refrigerator 210 and selectively opens and closes with a door 214. An external appearance of the door 214 is defined by an external door 215 and a cladding 216. In order to isolate the heat transfer through the door 214, an insulation layer 218 is formed in a space between the outer door 215 and the door covering 216. A dispenser 220 is installed so that a The front surface of the door 214 is exposed. It is preferable that the door 214 in which the dispenser 220 is installed is a freezing chamber door in case the refrigerator to which the present invention is applied is a side-by-side refrigerator. Dispatcher 220 is provided with a dispenser cover 222. The dispenser cover 222 has the shape of a recessed concave portion in the outer door 215. In general, the dispenser cover 222 has the shape of a half cylinder. In an upper portion of a concave space in the dispenser cover 222, a front end of a drainage tube 224 for discharging the water to the outside is exposed. The support ribs 226 are formed in various positions of a rear surface of the dispenser cover 222 to extend. The lengths of the support ribs 226 differ from each other in accordance with the training positions. A water tank 230 is installed between the dispenser cover 222 and the door cover 216. The water tank 230 stores the supplied water from an external water supply source and subsequently supplies the water to the dispenser 220. The water tank 230 is provided in the insulation layer 218. The water tank 230 mainly comprises a tank main body 232, a neck 233 and a nozzle 234. A space for storing water is formed in the main body of tank 232. A cross-sectional area , through which the water flows or is stored, and which is shown when an interior of the main tank body 232 is cut transversely, is formed to be relatively greater than that of the neck 233. A space in the one which stores the water or through which the water flows, is formed in the neck 233, which is formed at an upper end of the main tank body 232, so that the nozzle 234 and the main tank body 232 communicate each. As shown in Figures 11 and 12, the nozzle 234 is relatively long and is formed with a narrow internal channel. The nozzle channel 234 is formed to be much narrower than a sectional flow area of the main tank body 232 or the neck 233. The channel in the nozzle I 234 is formed to be as narrow as described above, since the water tank 230 is installed in the door 212. That is, it is the reason why the water stored in the water tank 230 slides and fluctuates when the door 212 is opened and can then be discharged through the nozzle 234 However, if the sectional flow area of the nozzle 234 is formed to be relatively much narrower than that of the main tank body 232 or the neck 233, water flows only in the main tank body 232 or the neck 233 and it is not discharged through the nozzle 234 even when the water fluctuates. If the nozzle 234 configured in this way is formed together with the main tank body 232 and the neck 233 when formed by blow molding, there is a concern with respect to reducing its accuracy. In such a case, there is concern in relation to the spillage of water when the nozzle 234 is coupled to the drain tube 224. Therefore, in the present invention, the nozzle 234 is further manufactured by injection molding. In general, injection molding can make the size accurate. After the nozzle 234 is formed by injection molding and inserted into a mold for blow molding, the main tank body 232 and the neck 233 are formed in such a manner, the nozzle 234 can be integral with the neck 233. One side of a lower end of the tank main body 232 is provided with an injection port 235. The injection port 235, through which the inside and outside of the main body of tank 232 communicate with each other, is connected to an external water supply source through a supply tube (not shown). A plurality of holding ribs 236 are formed on an external surface of the water tank 230 the holding ribs 236 are formed in positions corresponding to the supporting ribs 226. In the present embodiment, the holding ribs 236 are formed on both sides of the tank main body 232 and one side of the neck 233. The holding ribs 236 are held in the support ribs 226 by means of fasteners such as screws. Of course, the retaining ribs 236 and the support ribs 226 may coincide in shape and be held together. Meanwhile, the main tank body 232 of the water tank 230 is formed with through holes 238. The through holes 238 serve to cause the foam liquid to flow easily when the foam layer 218 is formed. As shown in the figure 10, the water tank 230 is formed in such a way that it is flat and that its lower portion is curved along the rear surface of the dispenser cover 222. Therefore, the foam liquid may not flow easily, especially between the dispenser cover 222 and the water tank 230. In order to avoid said phenomenon, by forming the through holes 238, the foam liquid flows easily from the back surface to the front surface of the water tank 230, i.e., to a space between the water tank 230 and the back surface of the water cover. Dispatcher 222. It is preferable that a plurality of through holes 238 are formed in an intermediate portion of the main tank body 232, in particular, in a relatively thinner portion in the main tank body 232.

In the present invention, the water tank 230, has a shape corresponding to the rear surface of the dispenser cover 222 and the main tank body 232 that extend to a lower portion of the dispenser cover 222 is formed to be bent, so that it is separated from the lower portion of the dispenser cover 222 by a substantially uniform distance. It is for the purpose of making storage space 212 of the main body of refrigerator 210 is not narrow allowing the thickness of the door 214 not to increase relatively, since the water tank 230 is installed in the insulation layer 218 formed in the door 214. Of course , the shape of the water tank 230 is not limited to that modeled in the present embodiment. For example, the water supply tank 3230 can be discharged and formed to conform to the upper, rear, and lower, rear, and both sides of the dispenser cover 222, thereby forming a "c" shape.

Additionally, the water tank 230 can be discharged and formed to conform to the rear and top surfaces of the dispenser cover 222, in order to be formed in the form of "1". In the following, the operation of the third embodiment according to the present invention configured in such a manner will be described in detail.

The installation of the water tank 230 in the door 214 in the present embodiment will be described. The dispenser 220 is installed to be exposed to a front surface of the external door 215 of the door 214. A plurality of the support ribs 226, with which the fastening ribs 236 of the water tank 230 are coupled, are provided in FIG. the rear surface of the dispenser cover 222 of the dispenser 220. In said condition, the water tank 230 is attached to the dispenser cover 222. Of course, the nozzle 234 is coupled to the drain tube 224 and a supply tube Further connecting to the injection port 235. Since it is contrary to the main tank body 232, the nozzle 234 coupled to the drain tube 224 is injection molded and, therefore, has a high degree of precision, the spillage between the nozzle 234 and draining tube 224 without being produced. Then, the foam liquid is applied to the rear surface of the outer door 215. The foam liquid is applied to the rear surface of the outer door 215 and a whole series of parts installed therein. Then, the dispenser 220, the water tank 230, the rear surface of the outer door 215 and the like, to which the foam liquid is applied, are protected by coupling the door covering 216 with the outer door 215. In said In this state, since the water tank 230 is placed in place by holding the holding ribs 236 to the support ribs 226, the The position of the water tank 230 is not distorted or deformed by the foam pressure of the foam liquid. Therefore, the water tank 230 is installed in a more precise position. In addition, the through holes 238 formed in the main tank body 232 of the water tank 230 cause the foam liquid to flow more easily around the water tank 230. That is, the insulation layer 218 is allowed to form from Easier way around the water tank 230 by easily supplying the foam liquid around the front and rear surfaces of the main tank body 232. Therefore, the water tank 230 is fixed and isolated more securely. If the foam liquid is filled between the door siding 216 and the outer door 215 of the door 230 and dried, the insulation layer 218 is formed. The insulation layer 218 minimizes heat transfer between the storage space 212 and the main body of the refrigerator 210 and its exterior through the the door 214. Meanwhile, while the water tank 230 is installed between the door liner 216 and the dispenser cover 222, a portion of the water tank 230 that extends beyond the lower portion of the dispenser cover 222, is formed to cover the lower surface of the dispenser cover 222. Therefore, the portion of the water tank 230 that extends to the lower portion of the dispenser 220 causes the thickness or volume of the door 230 not to increase. Accordingly, the volume of the storage space 212 can be formed relatively large. Figure 13 shows a fourth embodiment of the present invention. According to said figure, a storage space 312 is formed in a refrigerator main body 310 and selectively opens and closes with a door 314. An external appearance of the door 314 is defined by an external door 315 and a cladding 316. In order to isolate the heat transfer through the door 314, an insulation layer 318 is formed in a space between the outer door 315 and the door covering 316. A dispenser 320 is installed so that a Front surface of door 314 is exposed. It is preferable that the door 314 in which the dispenser 320 is installed, is a freezing chamber door in a case where the refrigerator to which the present invention is applied is a side-by-side refrigerator. Dispatcher 320 is provided with a dispenser cover 322. The dispenser cover 322 has the shape of a recessed concave portion in the outer door 315. In general, the dispenser cover 322 has the shape of a half cylinder. In an upper portion of a concave space in the dispenser cover 322, a front end of a drainage tube 324 is exposed to discharge water to the outside. A water tank 330 is installed between the dispenser cover 322 and the door covering 316. The water tank 330 stores the supplied water from an external water supply source and subsequently supplies the water to the dispenser 320. The water tank 330 is provided in the insulation layer 318. The reference numeral 334 designates a water tank nozzle 330, which is a portion connected to the drain pipe 324. The water tank 330 can be used, wherein a whole series of characteristics described in the third modality are combined and provided. A feeding tube 360, which is connected to the interior of the door 314, is connected to the water tank 330. The feeding tube 360 is also connected to the external water supply source, so that it generally extends from the main body of the refrigerator 310 to the interior of the door 314, through a hinge assembly through which the door 314 is installed in a pivoted manner in the main body of the refrigerator 310. A valve chamber 361 is formed in the door 314, so that the feeding tube 360 passes through the interior of the valve chamber 361. The valve chamber 361 is formed in the insulation layer 318, so that it opens towards a rear surface of the door 314 The valve chamber 361 is protected by a chamber cover 362. The chamber cover 362 is protected between the storage space 312 and a valve chamber 362, so that the cold air in the storage space 312 is interrupted in connection with its supply to the valve chamber 362. To this end, the chamber cover 362 is made of a material itself with a higher insulation capacity or, preferably, an insulation layer is provided 362 'in at least one surface of the chamber cover 362, as shown in Figure 13. A filter 363 and a valve 365 are installed in the valve chamber 361. The filter 363 serves to filter a whole series of impurities contained in the water supplied from the external water supply source. The valve 365 transfers the filtered water in the filter 363 to the water tank 330. For reference purposes, the valve 365 can also be configured to supply the water to an ice producer. In such a case, the ice maker should be installed on the side of the door 314. The operation of the fourth mode configured in such a manner will be briefly described. If it becomes necessary to supply water to the water tank 330 or the ice maker, the valve 365 opens selectively. When the valve 365 is selectively opened, water is supplied from the external water supply source to the filter 363 through the feed tube 360. The water supplied to the filter 363 is purified and subsequently selectively supplied to the tank of water 330 or to the ice producer controlling the valve 365. Users can use both the water supplied to the water tank 330 and the ice made from the water supplied to the ice producer, by removing the water and ice through the dispenser 320 in a predetermined amount. Meanwhile, since the filter 363 is an expandable part, it must be exchanged periodically. To this end, users open the camera cover 362 and subsequently exchange the filter 363. In addition, the maintenance of the valve 365 can also be performed after opening the camera cover 362. That is, in the present embodiment, the exchange of the filter 363 and maintenance of valve 365 can be performed simply after opening door 314. Subsequently, with respect to Figures 14 and 15, a fifth embodiment of the present invention will be described. According to said figures, a storage space 412 is formed in a refrigerator main body 410 and selectively opens and closes with a door 414. An external appearance of the door 414 is defined by an external door 415 and a cladding 416. In order to isolate the heat transfer through the door 414, an insulation layer 418 is formed in a space between the outer door 415 and the door covering 416. A dispenser 420 is installed so that a Front surface of door 414 is exposed. It is preferable that the door 414 where the dispenser 420 is installed, is a freezing chamber door in a case where the refrigerator to which the present invention is applied is a side-by-side refrigerator.

The dispenser 420 is provided with a dispenser cover 422. The dispenser cover 422 has the shape of a recessed concave portion in the outer door 415. In general, the dispenser cover 422 is in the form of a half cylinder. In an upper portion of a concave space in the dispenser cover 422, a front end of a drain tube 424 is exposed to discharge water to the outside. The support ribs 426 are formed in various positions on a rear surface of the dispenser cover 422 to extend. The lengths of the support ribs 426 differ from each other in accordance with the training positions. A water tank 430 is installed between the dispenser cover 422 and the door cover 416. The water tank 430 stores the supplied water from an external water supply source and subsequently supplies the water to the dispenser 420. The water tank 430 is provided in a position adjacent to a rear surface of the door 414 and not installed in the insulation layer 418. This is for the purpose of allowing the exchange of the water tank 430. That is, after a rear portion of the Dispatcher 420 is formed with a space to install water tank 430, water tank 430 is installed at that site, then, the insulation layer is formed by injecting foam liquid into an interior of door 414 corresponding to a front part of a portion where the water tank 430 is installed. At this time, the insulation layer 418 must be designed so that the mounting and dismounting of the water tank 430 is not hindered . The reference number 434 designates a nozzle connected to the drain tube 424. A plurality of fixing ribs 436 are formed on an external surface of the water tank 430. The holding ribs 436 are formed in positions corresponding to the support ribs 426 The fastening ribs 436 are fastened to the support ribs 426 by fasteners as screws, Of course, the fastening ribs 436 and the support ribs 426 may coincide in shape and be fastened together. 430, ie a surface facing the storage space 412, is protected by a cover 470. The cover 470 is made from a material with a higher insulation capacity, or an additional cover insulation layer 472 is provided. on an inner surface of the cover 470. This is for the purpose of making the cold air in the storage space 412 not influence the tanq. 430. The cover 470 should be removably installed in the door casing 416 of the door 414. The cover 470 can be secured to the door casing 416, for example by forming coupling hooks and coupling grips in corresponding positions of the cover 470 and door covering 416, respectively, or using screws. Of course, the cover 470 can be configured to open, even if the entire cover 470 is not separated.

For reference purposes, the cover 470 is configured to open and close in the present invention which means that since the cover 470 is removably installed in the door covering 416 as described above, tank maintenance may be performed. of water 430. In the fifth embodiment of the present invention configured in such a way, it is possible to separate the water tank 430 from the door 414, as well as fix and repair it. That is, the water tank 430 is separated from the door 414 by opening the cover 470, exposing the water tank 430 and releasing the coupling state of the support ribs 426 and the holding ribs 436. After the tank Water 430 is separated from door 414, water tank 430 can be cleaned and mounted at door 414 again, or else the used water tank 430 can be removed and exchanged for a new one of the water tank 430. That is, the holding ribs 436 of the water tank 430 are coupled and fixed to the support ribs 426. Of course, the water tank 430 must be connected with a feed tube and the nozzle 434 and the drain tube 424 of the dispenser 420 must be connected together. After the water tank 430 is mounted again on the door 414 as indicated above, closing the cover 470 does not cause cold air in the storage space 412 to influence the water tank 430.

Subsequently, with respect to Figure 16, a sixth embodiment of the present invention will be described. According to said figure, a storage space 512 is formed in a refrigerator main body 510 and selectively opens and closes with a door 514. An external appearance of the door 514 is defined by an exterior door 515 and a liner 516. In order to isolate the heat transfer through the door 514, an insulation layer 518 is formed in a space between the outer door 515 and the door covering 516. A dispenser 520 is installed so that a Front surface of door 514 is exposed. It is preferable that the door 514 where the dispenser 520 is installed, that a freezing chamber in case the refrigerator to which the present invention is applied is a side-by-side refrigerator. Dispatcher 520 is provided with a dispenser cover 522. Dispenser cover 522 is in the form of a recessed concave portion in outer door 515. In general, dispenser cover 522 is in the form of a half cylinder. In an upper portion of a concave space in the dispenser cover 522, a front end of a drain tube 524 is exposed to discharge water to the outside. The support ribs 526 are formed in various positions on a rear surface of the dispenser cover 522 to extend. The lengths of the support ribs 526 differ from each other in accordance with the training positions.

A reservoir 530 is provided between the dispenser cover 522 and the door liner 516. The reservoir 530 is formed by bending a tube of synthetic resin or metal many times. The reservoir 530 is formed in two layers, as shown in FIG. 16 of the present embodiment as a sectional view. Of course, the tube constituting the reservoir 530 can be formed in two or more layers. The number of layers of the tube constituting the tank 530 is determined by taking into account the thickness of the door 514 and the like. One end of the reservoir 530 is connected to a feed tube 560 which supplies the supplied water from an external water supply source. The other end of the reservoir 530 is connected to the draining tube 524 of the dispenser 520. The feeding tube 560 itself can be used as the tube constituting the reservoir 530 by extending the feeding tube 560. That is, the reservoir 530 can be formed by bending the feeding tube 560. Of course, the tube constituting the reservoir 530 can be configured and formed in addition to the feeding tube 560. Furthermore, the reservoir 530, which is installed in the isolation layer 518, can be attached to the support ribs 526 extending from the rear surface of the dispenser cover 522, in order to prevent the position of the reservoir 530 from being distorted in the process of forming the insulation layer 518. That is, in a state in which the reservoir 530 formed by bending the tube is fixed on the support ribs 526, the insulation layer 518 is formed. Of course, the reservoir 530 is not necessarily fixed to the to dispenser cover 522. Meanwhile, reservoir 530 can be modified in various ways in accordance with the arrangement of the tube. It is preferable that the tube constituting the reservoir 530 is disposed within the degree to which the flow of foam liquid is not obstructed. For example, although the tube is zigzagged from one side to the other while the reservoir 530 faces the door 514 from the rear in Figure 16, the tube can be zig-zag up and down. In the sixth embodiment of the present invention configured in such a way, the water supplied from the external water supply source through the supply tube 560 is stored in the tube constituting the reservoir 530 and subsequently discharged through the tube drained 524 from dispatcher 520. That is, the reservoir 530 is formed by bending a tube in a zigzag shape without using an additional water tank and the water in the reservoir 530 is maintained at a predetermined temperature due to the cold air in the storage space and subsequently discharged through the Dispatcher 520. In the present embodiment, since the reservoir 530 is formed by bending the tube in a zigzag manner, the water in the reservoir 530 is discharged in sequence. That is, the water first introduced into the reservoir 530 is first discharged to the dispenser 520. Therefore, the sediments do not remain in the tube constituting the reservoir 530 and are easily discharged due to water flow, even when sediments are produced. Subsequently, with respect to Figure 17, a seventh embodiment of the present invention will be described. According to said figure, the external and internal surfaces of a refrigerator main body 610 are defined by the external and internal boxes 611 and 611 'respectively. An insulation layer 610 'is formed between the outer and inner boxes 611 and 611'. The insulation layer 610 'serves to isolate the heat transfer between the inside and the outside of the main body of the refrigerator 610. The cooling and freezing chambers 612 and 612', which are storage areas, are formed in the main body of the refrigerator 610. The cooling and freezing chambers 612 and 612 'are divided by a barrier 613. The barrier 613 is manufactured by forming the insulation layer 610' between the inner boxes 611 '. Meanwhile, in the present embodiment, a dispenser 620 is provided in a side wall of the barrier 613 corresponding to an inner wall surface of the cooling chamber 612. The dispenser 620, through which the users remove and drink water, It generally provides water to the outside of the door. However, since the dispenser 620 is installed in the main refrigerator body 610 in the present embodiment, water can be provided after the door is opened.

A water tank 630 for storing the water supplied to the dispenser 620 is provided in the insulation layer 610 'in the barrier 613. However, the water tank 630 is not necessarily installed in the insulation layer 610' in the barrier 613 For example, the water tank 630 can be installed in any position in the insulation layer 610 'formed between the external and internal boxes 611 and 611'. However, when the water tank 630 is installed in the insulation layer 610 ', it is more preferable that the water tank 630 be installed in a position where the water temperature at that site can be maintained at a constant value. That is, the 630 water tank must be installed in a position in which the water is kept at a constant temperature (ie, a temperature at which the water does not freeze and refresh the users when drinking) under the influence of the low temperature in the cooling chamber 612 or the freezing chamber 612 '. Then, it is preferable that the dispenser 620 and the water tank 630 be installed in positions adjacent to each other. That is, it is preferable that the water tank 630 be installed in a position in which a drainage tube of the dispenser 620 and the water tank 630 are directly connected to each other without using an additional connecting tube. Meanwhile, Figure 18 shows an eighth embodiment of the present invention. Here, reference numbers expressed as seven hundred are provided to the elements corresponding to those of the seventh embodiment of Figure 17. Here, a water tank 730 is installed on a surface of an inner box 711 'of a cooling chamber 712. Then, a dispenser 720 is installed directly in front of the water tank 730. For reference purposes, the side surface of the cooling chamber 712, where the water tank 730 and the dispenser 720 are installed, is one of the portions where the frequency of use is lower. In said present embodiment, the water discharged through the dispenser 720 is always kept in a low temperature state under the influence of the temperature in the cooling chamber 712.

INDUSTRIAL APPLICABILITY Although a whole series of modalities of the present invention are described with reference to the appended drawings, in addition to the modalities mentioned previously, other modalities can be realized in which the configurations described above are combined in different ways. For example, it is possible to consider the configuration that any of the through holes 238 and the holding ribs 236 are provided in the water tank 230 in the third embodiment. It is also possible to consider a mode in which the nozzle 235 is further formed by injection molding, without the through holes 238 and the holding ribs 236 and that the other portions of the water tank 230 are formed by blow molding. Additionally, it is possible to consider a mode in which the water tank 230 of the third mode, is replaced with the water tank 30 or 130 of the first or second mode. In addition, although the filter 363 and the valve 365 are installed in the door 314 in the fourth embodiment, the filter can be installed in the refrigerator door or main body in other embodiments.

Claims (40)

NOVELTY OF THE INVENTION CLAIMS

1. - A refrigerator that includes a main body formed with a storage space and a door formed with an insulation layer at that site and mounted on the main body to selectively open and close the storage space, the refrigerator comprising: a dispenser which includes a dispenser cover installed in a concave portion of a front surface of the door and discharging water / ice to the exterior; a water tank installed between a door liner that defines a rear surface of the door and the dispenser cover to be separated by a predetermined gap from each of them, the water tank storing the water supplied from a source of supply of external water at a predetermined temperature and subsequently supplying the water to the dispenser; and a heater installed adjacent to the water tank and that generates heat selectively.

2. The refrigerator according to claim 1, further characterized in that a rear surface of the dispenser cover has the shape of a curved surface and a front surface of the water tank has the shape of a curved surface corresponding to the rear surface of the dispatcher cover, causing this . so that the front surface of the water tank is separated by a predetermined interval from the back surface of the dispenser cover.

3. The refrigerator according to claim 1 or 2, further characterized in that it additionally comprises a temperature sensor for detecting a water temperature stored in the water tank, the temperature sensor being provided on an external surface of the water tank.

4. The refrigerator according to claim 3, further characterized in that the front surface of the door additionally comprises a deployment through which the temperature of the water in the water tank detected in the temperature sensor is displayed.

5. The refrigerator according to claim 3, further characterized in that the temperature sensor is seated in a sensor notch, the sensor notch being formed concavely on the external surface of the water tank.

6. The refrigerator according to claim 5, further characterized in that the sensor notch is formed in a position facing the storage space when the water tank is installed inside the door.

7. The refrigerator according to claim 1, further characterized in that the water tank is attached to a support rib and, therefore, is fixed inside the door, the support rib extending from and formed on a rear surface of the dispenser cover.

8. The refrigerator according to claim 7, further characterized in that the water tank is formed with a retaining rib in a position corresponding to the support rib of the dispenser cover and the water tank is fixed to the inside of the tank. the door holding the retaining rib to the support rib.

9. The refrigerator according to claim 1, further characterized in that the main tank body of the water tank is formed with a through hole through which flows the foam liquid that forms the insulation layer.

10. The refrigerator according to claim 9, further characterized in that a plurality of through holes are drilled through thinner portions of the tank main body.

11. The refrigerator according to claim 1, further characterized in that the water tank comprises a tank main body in which the water is stored, a neck formed integrally with the tank main body and having an area Sectional relatively narrow flow and a nozzle installed in the neck, injection molded and connected with a drainage tube of the dispenser, the tank main body and the neck formed by blow molding with the nozzle inserted in that site.

12. - The refrigerator according to claim 11, further characterized in that a sectional flow area of the nozzle is formed relatively narrower than that of the neck.

13. The refrigerator according to claim 1, further characterized in that the water tank is bent and shaped to form a rear surface of the dispenser cover and at least one surface of the dispenser cover adjacent to it and the tank. of water is bent and shaped so that a portion leaving the rear surface of the dispenser cover is separated by a predetermined interval relative to the dispenser cover.

14. The refrigerator according to claim 13, further characterized in that the water tank is bent and formed to be separated by a predetermined interval of the rear surface and a lower surface of the dispenser cover and the water tank is installed inside the door.

15. The refrigerator according to claim 1, further characterized in that the heater is installed on a rear surface of the dispenser cover.

16. The refrigerator according to claim 1 or 15, further characterized in that the heater selectively applies heat to the water in the water tank, thereby maintaining the water at a predetermined temperature, and the heater applies heat to a surface of the dispenser cover, thus avoiding the formation of frost.

17. - The refrigerator according to claim 1, further characterized in that a valve chamber is additionally formed in the insulation layer of the door to be opened from the storage space of the refrigerator main body, the valve chamber including a valve for controlling the water supply from the external water supply source and a filter to purify the water.

18. The refrigerator according to claim 17, further characterized in that the valve chamber is selectively protected by a chamber cover.

19. The refrigerator according to claim 1, further characterized in that the water tank is installed inside the door corresponding to a rear portion of the dispenser and the water tank is protected by a cover that can be opened and closed , so it is not under the influence of cold air in the storage space.

20. The refrigerator according to claim 19, further characterized in that the cover is formed with a cover insulation layer.

21. A refrigerator that includes a main body formed with a storage space and a door formed with an insulation layer at that site and mounted on the main body to selectively open and close the storage space, the refrigerator comprising: a dispenser including a dispenser cover installed in a concave portion of a front surface of the door and discharging water / ice to the outside; a water tank installed between a door liner that defines a rear surface of the door and the dispenser cover to be separated by a predetermined gap from each of them, the water tank storing the supplied water from a source of supply of external water at a predetermined temperature and subsequently supplying the water to the dispenser; and a filter that purifies the water supplied from the external water supply source and that supplies the water to the water tank.

22. The refrigerator according to claim 21, further characterized in that a support rib projects from and is formed on a rear surface of the dispenser cover, a retaining rib is formed in the water tank, in a position corresponding to the supporting rib, and the water tank is fixed to the inside of the door to be separated by a predetermined interval with respect to the door covering by engaging the support rib and the retaining rib together.

23. The refrigerator according to claim 21 or 22, further characterized in that the tank main body of the water tank is formed with a through hole through which the foam liquid flows.

24. - The refrigerator according to claim 23, further characterized in that a plurality of through holes are drilled through the thinner portions of the tank main body.

25. The refrigerator according to claim 23, further characterized in that the water tank comprises a tank main body where the water is stored, a neck formed integrally with the tank main body and having a sectional area of relatively narrow flow and a nozzle installed in the neck, injection molded and connected with a drainage tube of the dispenser, the main tank body and the neck being formed by blow molding with the nozzle inserted therein.

26. The refrigerator according to claim 23, further characterized in that a sectional flow area of the nozzle is formed relatively narrower than that of the neck.

27. The refrigerator according to claim 23, further characterized in that the water tank is bent and shaped to conform to a rear surface of the dispenser cover and at least one surface of the dispenser cover adjacent to that site and the water tank is bent and shaped so that a portion leaving the rear surface of the dispenser cover is separated by a predetermined interval relative to the dispenser cover.

28. The refrigerator according to claim 27, further characterized in that the water tank is bent and formed to be separated by a predetermined interval in relation to the rear surface and a lower surface of the dispenser cover and the water tank. It is installed inside the door.

29. The refrigerator according to claim 26, further characterized in that a valve chamber is additionally formed in the insulation layer of the door to be opened in the storage space of the refrigerator main body, the valve chamber including a valve to control the water supply from the external water supply source and a filter to purify the water.

30. The refrigerator according to claim 29, further characterized in that the valve chamber is selectively protected by a chamber cover.

31. The refrigerator according to claim 21, further characterized in that the water tank is installed inside the door corresponding to a rear portion of the dispenser and the water tank is protected by a cover that can be opened and closed and, therefore, it is not under the influence of cold air in the storage space.

32. The refrigerator according to claim 31, further characterized in that the cover is formed with a cover insulation layer.

33.- A refrigerator that includes a main body formed with a storage space and a door formed with an insulation layer at that site and mounted on the main body to selectively open and close the storage space, the refrigerator comprising: a dispenser including a dispenser cover installed in a concave portion of a front surface of the door and discharging water / ice to the outside; and a reservoir installed in the insulation layer between a door covering defining a rear surface of the door and the dispenser cover, formed by arranging a tube repeatedly in a zigzag fashion, which stores the supplied water from a water supply source external to a predetermined temperature and that supplies the water to the dispenser.

34. The refrigerator according to claim 33, further characterized in that the tank is formed by arranging the tube repeatedly in a zigzag fashion, the tube being formed integrally with a feed tube connected to the external water supply source, the tube being directly connected to a drainage tube through which the water is discharged from the dispenser.

35. The refrigerator according to claim 33, further characterized in that the tank is formed by arranging the tube repeatedly in a zigzag fashion, the tube being formed separately from a feed tube connected to the external water supply source, the tube being directly connected to a drainage tube through which the water is discharged from the dispenser.

36. - The refrigerator according to claim 34 or 35, further characterized in that the reservoir is fixed to a support rib, which extends from and is formed on a rear surface of the discharger cover of the dispenser. 37.- A refrigerator that includes a main body formed with a storage space and a door formed with an insulation layer at that site and mounted on the main body to selectively open and close the storage space, the refrigerator comprising: a dispenser including a dispenser cover installed in a concave portion of a front surface of the door and discharging water / ice to the outside; a water tank installed between a door liner that defines a rear surface of the door and the dispenser cover to be separated by a predetermined gap from each of them, the water tank storing the supplied water from a source of supply of external water at a predetermined temperature and subsequently supplying the water to the dispenser; a temperature sensor installed on one side of the water tank and that detects a temperature in the water tank; and a heater that operates in accordance with the temperature in the water tank detected by the temperature sensor, the heater generating heat when the detected temperature is lower than a preset temperature and which turns off when the detected temperature is higher than the pre-set temperature, thus maintaining the temperature of the water tank at a predetermined value. 38.- A method for manufacturing a door of a refrigerator having a dispenser, wherein a storage space of a main body of the refrigerator is opened and closed by the door and an external appearance of the refrigerator is defined by an external door and a Door liner, the dispenser is provided in the door, so that the dispenser is exposed to the external door, and an insulation layer is installed between the external door and the door liner, so that the door liner is it is separated by a predetermined interval of a water tank to supply the water to the dispenser, the method comprising the steps of: attaching a water tank holding rib to a support rib formed in a dispenser cover of the dispenser installed in the external door; apply foam liquid to a rear surface of the external door while the water tank is fixed; and cover the back surface of the outer door, to which the foam liquid is applied, with the door skin and fill the foam liquid between the door skin and the outer door. 39.- A refrigerator that has a dispenser, which comprises: a main body of refrigerator that includes a storage space defined by internal and external boxes with an insulation layer formed between them, said storage space being found divided into storage chambers. cooling and freezing side by side with a barrier with an insulation layer formed on that site; a water tank installed in the insulation layer of the barrier, to store the water supplied from a water supply source; and a dispenser installed in the storage space corresponding to the front of the storage tank, to provide the water supplied from the water tank. 40.- A refrigerator that has a dispenser, which comprises: a main body of refrigerator that includes a storage space defined by internal and external boxes with an insulation layer formed between them; a water tank installed in a surface of the inner box defining an internal surface of a cooling chamber of the storage space, for storing the water supplied from a water supply source; a dispenser installed in the storage space corresponding to the front of the water tank, to supply the water supplied from the water tank.